Affiliation:
1. Fluid Power Centre, School of Mechanical Engineering, University of Bath, Bath BA2 7AY, United Kingdom
Abstract
A nonlinear dynamic model of a high speed direct acting solenoid valve is presented. The valve consists of two subsystems; a proportional solenoid and a spool assembly. These two subsystems are modeled separately. The solenoid is modeled as a nonlinear resistor/inductor combination, with inductance parameters that change with displacement and current. Empirical curve fitting techniques are used to model the magnetic characteristics of the solenoid, enabling both current and magnetic flux to be simulated. The spool assembly is modeled as a spring/mass/damper system. The inertia and damping effects of the armature are incorporated in the spool model. The solenoid model is used to estimate the spool force in order to obtain a suitable damping coefficient value. The model accurately predicts both the dynamic and steady-state response of the valve to voltage inputs. Simulated voltage, current, and displacement results are presented, which agree well with experimental results.
Subject
Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering
Reference9 articles.
1. Bolton, B., 1986, Electromagnetism and lts Applications, Van Nostrand, pp. 98–101.
2. Chua
L. O.
, and StromsmoeK. A., 1970, “Lumped Circuit Models for Nonlinear Inductors Exhibiting Hysteresis Loops,” IEEE Transactions on Circuit Theory, Vol. CT-17, No. 4, pp. 564–574.
3. Chua
L. O.
, and BassS. C., 1972, “A Generalized Hysteresis Model,” IEEE Transactions on Circuit Theory, Vol. CT-19, No. 1, pp. 36–48.
4. Hamming, R. W., 1989, Digital Filters, Prentice-Hall, pp. 133–140.
5. Hardwick, D., 1984, “Understanding Proportional Solenoids,” Hydraulics & Pneumatics, Aug., pp. 58–60.
Cited by
88 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献